Homogeneous (α,β)-metrics of Douglas type
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Huaifu Liu
Abstract
In this paper, we consider two related problems concerning homogeneous (α,β)-metrics. In the first part we consider homogeneous (α,β)-spaces of Douglas type. We prove that a homogeneous (α,β)-metric is a Douglas metric if and only if either F is a Berwald metric or F is a Douglas metric of Randers type. In the second part, we prove that if F is a homogeneous (α,β)-metric which is neither a Riemannian metric nor a Minkowski metric,
then F is locally projectively flat if and only if F is a locally projectively flat left invariant Randers metric on the hyperbolic space
Funding source: NSFC
Award Identifier / Grant number: 11271198
Funding source: NSFC
Award Identifier / Grant number: 11221091
Funding source: SRFDP of China
© 2015 by De Gruyter
Artikel in diesem Heft
- Frontmatter
- Subgroups which admit extensions of homomorphisms
- On the Dedekind completion of function rings
- Semiperfect and coreflexive coalgebras
- Approximations to the Karcher mean on Hadamard spaces via geometric power means
- Separable convolution-elliptic operators with parameters
- Charged spaces
- Autotopies and quasigroup identities: New aspects of non-associative division algebras
- Dualizing complexes and homomorphisms vanishing in Koszul homology
- Comparison tests for the asymptotic behaviour of higher-order dynamic equations of neutral type
- Hardy spaces associated with a pair of commuting operators
- Weighted multilinear Hardy operators and commutators
- A characterisation of almost simple groups with socle 2E6(2) or M(22)
- The Σ1-invariant for Artin groups of circuit rank 1
- The average signature of graph links
- Peetre's theorem in the locally convex setting
- Small covers, infra-solvmanifolds and curvature
- Farrell–Jones spheres and inertia groups of complex projective spaces
- Character sums over unions of intervals
- Cones of certain isolated left orderings and chain domains
- On Wolff's L5/2-Kakeya maximal inequality in ℝ3
- Fractional type Marcinkiewicz integral operators on function spaces
- Lévy–Khintchine type representation of Dirichlet generators and semi-Dirichlet forms
- Homogeneous (α,β)-metrics of Douglas type
Artikel in diesem Heft
- Frontmatter
- Subgroups which admit extensions of homomorphisms
- On the Dedekind completion of function rings
- Semiperfect and coreflexive coalgebras
- Approximations to the Karcher mean on Hadamard spaces via geometric power means
- Separable convolution-elliptic operators with parameters
- Charged spaces
- Autotopies and quasigroup identities: New aspects of non-associative division algebras
- Dualizing complexes and homomorphisms vanishing in Koszul homology
- Comparison tests for the asymptotic behaviour of higher-order dynamic equations of neutral type
- Hardy spaces associated with a pair of commuting operators
- Weighted multilinear Hardy operators and commutators
- A characterisation of almost simple groups with socle 2E6(2) or M(22)
- The Σ1-invariant for Artin groups of circuit rank 1
- The average signature of graph links
- Peetre's theorem in the locally convex setting
- Small covers, infra-solvmanifolds and curvature
- Farrell–Jones spheres and inertia groups of complex projective spaces
- Character sums over unions of intervals
- Cones of certain isolated left orderings and chain domains
- On Wolff's L5/2-Kakeya maximal inequality in ℝ3
- Fractional type Marcinkiewicz integral operators on function spaces
- Lévy–Khintchine type representation of Dirichlet generators and semi-Dirichlet forms
- Homogeneous (α,β)-metrics of Douglas type
